Faglige nøgleord: astronomy, astrophysics, stars, stellar observations
Oplæg tilgængeligt på: Engelsk og polsk
About me: I am a PhD student from DTU Space, working in the Stellar Astrophysics group. I study how stars work and why some of them change their brightness over time. My academic journey started in Poland, where I did my Bachelor’s degree in Physics. During those studies, I became more and more interested in astronomy, and then I continued with a Master’s degree in Astronomy, where I studied variable stars. That was my first real research experience, working with real observational data and trying to answer scientific questions.
About the field: My field is stellar astrophysics: the study of how stars are born, how they evolve, and what happens inside them. Although this is basic science, it is very important. Understanding stellar physics helps us understand our own Sun. It also helps us understand how chemical elements like carbon, oxygen, and iron are created in stars. These elements are essential for life. In fact, every atom in our body was once formed inside a star! About the presentation: Stars are not just small dots in the sky. They are huge balls of hot gas where extreme physical processes happen. Inside stars, nuclear reactions produce energy, and this energy travels to the surface. Sometimes, stars change their brightness over time. These stars are called variable stars. So, in simple words: I study why stars change their brightness and what these changes tell us about what is happening deep inside them. In this presentation, I would like to share the basics of stellar astrophysics, show what astronomers do, what the data looks like, and what we can get from them. I will explain how and why some stars change their brightness, and how we can use these changes to “look inside” a star.